---
publication_id: "OT-2026-000001300"
title: "Socket systems and methods"
published_at: "2026-09-15T19:04:46.892069Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001300"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b13/065"
  - "b25b13/065"
  - "b25b23/0035"
  - "b25b13/06"
  - "b25b13/065"
  - "b25b13/48"
---

# Socket systems and methods

## Abstract

A tanker rail car socket tool includes a drive cylinder including a bore sized to receive at least a portion of a threaded bolt configured to secure a tanker car lid to a tanker rail car; a drive opening formed in a first end of the drive cylinder and sized to receive a portion of a tool configured to transmit torque to the drive cylinder when engaged with the drive opening; and a socket head coupled to a second end of the drive cylinder opposite the first end. The socket head includes a nut opening defined by a plurality of torque-transferring surfaces. The torque-transferring surfaces are configured to transfer the torque transmitted to the drive cylinder by the tool to a nut threaded over the threaded bolt to secure the tanker car lid to the tanker rail car.